kBox Ultimate System
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The kBox Ultimate System is the most complete kBox Flywheel Training package, delivering maximum exercise variety, expanded accessory options and professional performance training. Designed for elite sports, high-volume facilities and organizations that want every training possibility in one solution.
Description
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What is Flywheel Training?
Unlike traditional weights, Flywheel Training uses inertia to create resistance. The harder you pull or push, the more resistance the flywheel generates, automatically adapting every repetition to your effort. This allows you to train the lifting (concentric) phase with maximal intent while accessibly and safely emphasizing the lowering (eccentric) phase, helping you build strength, power and muscle more efficiently.
Learn more about How Flywheel Training Works >
About the kBox Ultimate System
The kBox Ultimate System includes the widest range of accessories and training options available for the kBox platform, creating a comprehensive Flywheel Training solution for professional environments. Designed for elite performance centres, commercial gyms, universities and sports organizations, it supports virtually every lower body and full body training application while enabling seamless progression across athletes and clients. Whether your focus is strength, hypertrophy, speed, rehabilitation or long-term athletic development, the Ultimate System provides maximum versatility without compromise.
Best for
- Professional sports teams
- Universities
- Commercial gyms
- Performance centres
- Multi-user training environments
Key Benefits
- Most complete kBox Flywheel Training package
- Maximum exercise variety
- Supports multiple users and training goals
- Professional performance development
- Complete kMeter compatibility
Why Choose a kBox?
The kBox is a platform-based Flywheel Training device designed for lower body and full body strength training. The platform design supports everything from squats and deadlifts to lunges, rows, presses and rotational movements, making it suitable for strength development, rehabilitation and athletic performance.
Whether you're training at home, coaching athletes or equipping a professional facility, the kBox provides a compact solution capable of replacing multiple traditional strength training exercises while delivering the unique benefits of eccentric overload.
 kBox Active |
Best ForHobby Athletes,Home Training |
 Up to 4 L flywheels with Advanced Flywheel Knob |
 Training surface area |
 35 lbs |
 Steel chassis |
 kMeter Optional |
kBox Lite |
Best ForPortablePro-level Training |
 Up to 6 L flywheels with Advanced Flywheel Knob |
|
Training surface area |
 22 lbs |
 Aluminum chassis |
 Performance Tracking via kMeter |
 kBox Pro |
Best ForElite Training& Facility Usage |
|
Up to 6 XL flywheels with Advanced Flywheel Knob |
 60% bigger surface area |
 34 lbs |
 Aluminum chassis |
|
Performance Tracking via kMeter |
 Custom Design |
Specifications
| SKU | KB5US |
|---|
kBox Platform
| Manual | |
|---|---|
| Custom design limit | Up to 1 hour of work is included in the price |
| Top surface | 73 x 43.5 cm or 29 x 17" (kBox Lite or Active), 90 x 55 cm or 35 x 22" (kBox Pro) |
| Foot print | 81 x 51 cm or 32 x 20" (kBox Lite or Active), 98 x 63 cm or 39 x 25" (kBox Pro) |
| Height | 21 cm or 8.3" (kBox Lite or Active), 23 cm or 9.1" (kBox Pro) |
| Weight | 10 kg or 22 lbs (kBox Lite), 15.5 kg or 34 lbs (kBox Pro), 16 kg or 35 lbs (kBox Active) |
| Inertia range (standard) | 0.005 kgm² – 0.200 kgm² (kBox Lite), 0.005 kgm² – 0.280 kgm² (kBox Pro) |
| Range of motion | 180 cm (71") |
| Feedback | kMeter feedback system built-in to kBox Pro & kBox Lite or available as an add-on to the kBox Active |
| Compatible flywheels | L – 0.050 kgm² · Fits all devices, M – 0.025 kgm² · Fits all devices, S – 0.010 kgm² · Fits all devices, XL – 0.070 kgm² · excl. kBox Lite/Active, XS – 0.005 kgm² · Fits all devices |
Angle Adjuster
| Compatibility | kBox |
|---|---|
| Exercises | Rows, swings and etc |
| SKU | O-0004 |
Flywheel
| Flywheel sizes/inertia | XS – 0.005 kgm², S – 0.010 kgm², M – 0.025 kgm², L – 0.050 kgm², XL – 0.070 kgm² |
|---|---|
| Compatibility | kBox Pro, kBox Lite (excl. XL), kBox Active (excl. XL), kPulley Pro, kPulley Go, LegExx, LegFlexx |
| Color | Standard, Color Coded |
Hip Belt
| Inner circumference | 82 to 130 cm/32.3 to 51.2 inches (Medium-Large), 60 to 90 cm/23.6 to 35.4 inches (Small-Medium) |
|---|---|
| Weight | 210 g – 280 g |
| Compatibility | kBox, kPulley |
| Exercises | Squats, lateral squats, lunges, split squats, calf press |
Harness
| Weight | 950 g – 1350 g per harness |
|---|---|
| Exercises | Squats, lateral squats, split squats, lunges, calf press |
| Compatibility | kBox (recommended), kPulley |
kGrips
| Weight | 90 g each (Original), 122 g each (A90) |
|---|---|
| Exercises | Pulls, rows, rotations, deadlifts, curls |
| Compatibility | kBox, kPulley |
kGrips
| Weight | 90 g each (Original), 122 g each (A90) |
|---|---|
| Exercises | Pulls, rows, rotations, deadlifts, curls |
| Compatibility | kBox, kPulley |
kBar
| Length | 58 cm (original), 75.5 cm (knurled) |
|---|---|
| Weight | 0.6 kg (original), 3.2 kg (knurled) |
| Material | Aluminium (original), stainless steel (knurled) |
| Load limit | 200 kg/440 lbs/1960 N (original), 400 kg/880 lbs/3920 N (knurled) |
| Exercises | Straight-arm lifts, deadlifts, high pulls, rows, biceps curls, squat & lunge variations, shoulder press exercises and more |
| Compatibility | kBox, kPulley |
Ankle Cuffs
| Size | Adjustable |
|---|---|
| Weight | 150 g each |
| Exercises | Knee pulls, hamstring curls, leg extensions, hip adduction, hip abduction |
| Compatibility | kBox, kPulley |
| SKU | 19053 |
Foot Block
| Length | Pro + Standard – 54.5 cm (21.5"), Lite / Active + Standard – 44.5 cm (17.5"), Lite / Active + Platform Extension – 51 cm (20.1") |
|---|---|
| Width | 10 cm (4") |
| Height | 5 cm (2") |
| Weight | Pro + Standard – 1.8 kg (4 lbs), Lite / Active + Standard – 1.6 kg (3.5 lbs), Lite / Active + Platform Extension – 1.9 kg (4.2 lbs) |
| Color | Storm Gray |
| Exercises | Squat variations, calf press |
Elevation Blocks (2-pack)
| Length | 35 cm |
|---|---|
| Width | 16 cm |
| Height | 5 cm (single) |
| Weight | 1 kg (per pair) |
| Material | EVA foam |
| Exercises | Squats, deadlifts, swings and other exercises requiring greater depth |
| Compatibility | kBox Pro, kBox Lite, kBox Active, kBox4, kBox3 |
| SKU | 19016 |
Extension Strap
| Adjustable length | up to 50 cm |
|---|---|
| Weight | 71 g |
| SKU | 19004 |
Decline Board
| Length | 48 cm |
|---|---|
| Width | 44.5 cm |
| Height | 13.5 cm |
| Weight | 6.5 kg |
| Exercises | Decline squats, calf press |
| Compatibility | kBox4 Pro, kBox4 Lite / Active |
| SKU | 19011 |
Head Harness
| Size | Adjustable (inner circumference range from 50 to 58 cm) |
|---|---|
| Weight | 300 g |
| Compatibility | kBox, kPulley |
| SKU | 19070 |
kBox Attachment Kit
| Type | Centered, 4-point |
|---|---|
| Compatibility | kBox4 Pro, kBox4 Lite, kBox4 Active |
Cover Mat
| Weight | 0.8 kg (1.8 lbs) – 1.4 kg (3 lbs) |
|---|---|
| Material | Recycled eco-friendly rubber |
Accessory Rack
| Type | Freestanding, Wall Mounted, Flywheel Stand |
|---|---|
| Material | Steel |
| Height | 99 cm (Freestanding), 16 cm (Wall Mounted), 33 cm (Flywheel Stand) |
| Width | 68 cm (Freestanding), 97.5 cm (Wall Mounted), 27 (Flywheel Stand) |
| Depth | 47 cm (Freestanding), 5 cm (Wall Mounted), 19 cm (Flywheel Stand) |
| Weight | 19 kg (Freestanding), 4 kg (Wall Mounted), 4kg (Flywheel Stand) |
| Flywheel capacity | 10 (Freestanding), 4 (Wall Mounted), 10 (Flywheel Stand) |
Flywheel Bag
| Weight | 360 g |
|---|---|
| Compatibility | 0.010 kgm², 0.025 kgm², 0.050 kgm² and 0.070 kgm² (without packaging sleeve) |
| SKU | 19001 |
